The Packages containing empty AVI files. I've searched for all intro movies in the Sims 4 Packages with s4pe and found out, that they are only compiled into the "ClientFullBuild1.package".
Then I've exported all of this AVI files and found the following instance IDs containing the intro movies:

0x799AE80054CEE156: EA & Maxis Intro

0xE096C99F0C5579B6: "Los Sims 4" Intro

0xE096CA9F0C557B08: "The Sims 4" Intro with Japanese sub

0xE096CB9F0C557D59: "The Sims 4" Intro with Korean sub

0xE096CE9F0C558228: "De Sims 4" Intro

0xE096C39F0C556FFD: "The Sims 4" Intro with Chinese sub

0xE096C69F0C5574DE: "Les Sims 4" Intro

0xE096C89F0C557877: "Die Sims 4" Intro

0xE096C99F0C5579AB: "The Sims 4" Intro

After that I created a package with s4pe, import 9 empty AVI files and set there instance ID to the IDs given above.
That's it

Key: - File was updated after upload was posted

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